Results 51 to 60 of about 59,064 (307)
A stepwise emergence of evolution in the RNA world
FEBS Letters, EarlyView.How did biological evolution emerge from chemical reactions? This perspective proposes a gradual scenario of self‐organization among RNA molecules, where catalytic feedback on random mixtures plays the central role. Short oligomers cross‐ligate, and self‐assembly enables heritable variations. An event of template‐externalization marks the transition to
Philippe Nghe
wiley +1 more source
Journal of GlaciologyThe aim of this paper is to characterise the internal structures and ice-flow history of representative valley glaciers in Svalbard and infer from them dynamic changes over centennial timescales.
Stephen J.A. Jennings +5 more
doaj +1 more source
Topology, 1968 AbstractIn this paper we study some properties of three dimensional manifolds foliated by planes. The main result is Theorem 3, which states the three dimensional torus is the only closed three manifold which admits a C2 foliation by planes; the author obtained this result in collaboration with J. Sondow. We show how this result gives information about
openaire +2 more sources
Dicritical logarithmic foliations [PDF]
Publicacions Matemàtiques, 2006 We show the existence of weak logarithmic models for any (dicritical or not) holomorphic foliation F of (C2 , 0) without saddlenodes in its desingularization. The models are written in terms of a representative set of separatrices, whose equisingularity types are controlled by the Milnor number of the foliation.
Cano, F., Corral, N.
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FEBS Letters, EarlyView.Exposure to common noxious agents (1), including allergens, pollutants, and micro‐nanoplastics, can cause epithelial barrier damage (2) in our body's protective linings. This may trigger an immune response to our microbiome (3). The epithelial barrier theory explains how this process can lead to chronic noncommunicable diseases (4) affecting organs ...
Can Zeyneloglu +17 more
wiley +1 more source
Dimension Distortion by Sobolev Mappings in Foliated Metric Spaces
Analysis and Geometry in Metric Spaces, 2013 We quantify the extent to which a supercritical Sobolev mapping can increase the dimension of subsets of its domain, in the setting of metric measure spaces supporting a Poincaré inequality. We show that the set of mappings that distort the dimensions of
Balogh Zoltán M. +2 more
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Bulletin of the Mineral Research and Exploration, 2019 Yeşilöz Makaslama Zonu (YMZ), Alanya bölgesinde yer alan Alanya Nap Kompleksi’nin, Mahmutlar alt napı içerisinde belirlenmiş büyük bir makaslama zonudur.
Volkan ÖZAKSOY
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Rapid evolution of complex limit cycles [PDF]
, 2009 The current article studies certain problems related to complex cycles of holomorphic foliations with singularities in the complex plane. We focus on the case when polynomial differential one-form gives rise to a foliation by Riemann surfaces.
Dimitrov, Nikolay
core
Enlargeability, foliations, and positive scalar curvature
, 2017 We extend the deep and important results of Lichnerowicz, Connes, and Gromov-Lawson which relate geometry and characteristic numbers to the existence and non-existence of metrics of positive scalar curvature (PSC).
Benameur, Moulay-Tahar +1 more
core +1 more source
Exploring lipid diversity and minimalism to define membrane requirements for synthetic cells
FEBS Letters, EarlyView.Designing the lipid membrane of synthetic cells is a complex task, in which its various roles (among them solute transport, membrane protein support, and self‐replication) should all be integrated. In this review, we report the latest top‐down and bottom‐up advances and discuss compatibility and complexity issues of current engineering approaches ...
Sergiy Gan +2 more
wiley +1 more source